Check if blob is correctly generated in cmake

example/ck_tile/01_fmha/CMakeLists.txt

@@ -22,12 +22,20 @@ string(REPLACE ";" "," FMHA_FWD_APIS "${FMHA_FWD_ENABLE_APIS}")
 execute_process(
   COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/generate.py
   --api ${FMHA_FWD_APIS} --list_blobs ${CMAKE_CURRENT_BINARY_DIR}/fwd_blob_list.txt
+  RESULT_VARIABLE ret
 )
+if(ret AND NOT ret EQUAL 0)
+  message( FATAL_ERROR "CK Tile FMHA FAILED to genrate a list of FWD kernels via Python.")
+endif()
 
 execute_process(
   COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/generate.py
   --api bwd --list_blobs ${CMAKE_CURRENT_BINARY_DIR}/bwd_blob_list.txt --receipt 3
+  RESULT_VARIABLE ret
 )
+if(ret AND NOT ret EQUAL 0)
+  message( FATAL_ERROR "CK Tile FMHA FAILED to genrate a list of BWD kernels via Python.")
+endif()
 
 # NOTE: for cmake, the FMHA_FWD_GEN_BLOBS/FMHA_BWD_GEN_BLOBS files must be in the same directory
 #       as current cmake list, otherwise will not figure out the dependency properly

library/src/tensor_operation_instance/gpu/mha/CMakeLists.txt

@@ -31,8 +31,13 @@ file(COPY ${MHA_HEADERS} DESTINATION ${FMHA_CPP_FOLDER})
 execute_process(
   COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/example/ck_tile/01_fmha/generate.py
   --list_blobs ${FMHA_CPP_FOLDER}/blob_list.txt
+  RESULT_VARIABLE ret
 )
-file(STRINGS ${FMHA_CPP_FOLDER}/blob_list.txt FMHA_FWD_GEN_BLOBS)
+if(ret AND NOT ret EQUAL 0)
+  message( FATAL_ERROR "CK Tile MHA FAILED to genrate a list of kernels via Python.")
+else()
+  file(STRINGS ${FMHA_CPP_FOLDER}/blob_list.txt FMHA_FWD_GEN_BLOBS)
+endif()
 
 # actually generate the cpp files
 add_custom_command(